The Arm Ltd logo and a rising stock graph are seen in this illustration taken March 6, 2023. REUTERS/Dado Ruvic/Illustration Acquire Licensing Rights NEW YORK, Sept 8 (Reuters) - Arm Holdings Plc, the chip designer owned by SoftBank Group Corp (9984.T) that is seeking roughly $5 billion in its stock market debut, has seen investor demand that is six times the amount it is asking for, people familiar with the matter said on Friday. While the oversubscription does not guarantee a strong performance for Arm's blockbuster U.S. initial public offering (IPO), it makes it more likely that the company will...